Feiedeich mtjllbe



(No Model.)

F. MULLER.

FIRE GRATIS.

No. 329,843. Patented Nov. 3, 1885.

IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIHIIIIIIIIIIIIlIlll 7 HI Hlllllllllllllllllll Ellll,flnm1 fl lm ;j 7 a lllllllllllllllllllll IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIInJ'"Ill] 2% iiIIIIIIIIIIIIlIlIllIIIIIIIII IlllllllIIIIIIIIIIIIIIIIIIIIIIII a WITNESSES: INVENTOR flz'ednzi 777E227 ofi f/ww A? BY WW W M ATTORNEYS UNITED STATES PATENT QFFICE.

FRIEDRICH MULLER, OF NEIV YORK, N. Y.

FIRE-G RATE.

EFECIE'ICATION forming part of Letters Patent No. 329,843, dated November 3, 1885.

Application filed January 29, 1885. Serial No. 154,333.

To all whom it may concern.-

Be it known that I, FRIEDRICH MULLER, a citizen of the German Empire, residing at New York, in the county and State of New York, have invented new and useful Improvements in Fire-Grates, of which the following is a specification.

This invention has for its object to provide a novel shaker for grates; and it consists in the combination of devices hereinafter de scribed and claimed, reference being made to the accompanying drawings, in which- Figure 1 is a longitudinal vertical section of my improved grate in the plane y y, Fig. 2. Fig. 2 is a bottom view of the same.

Similar letters indicate corresponding parts.

In the drawings, the letter A designates the bed-plate of the grate, which is secured in the brick-work of the furnace, and, as shown in the drawings, the grate-bars B are cast inte gral therewith; but I do not wish to confine myself to this construction, as the grate-bars B may be cast separately and secured in the usual manner.

Gis the shaker, which consists of a series of bars, a a, 850., which are centrally connected and have projections b b, 850., which extend up between the grate-bars B to within a short distance from the upper surface of the same. The shaker Cis best cast in one piece, the bars having the undulating appearance shown in the drawings, and is provided with journals intermediate its ends, which are supported in boxes D D, which are secured to a hanger, E, the ends of which clamp around the grate-bed A, or in the ordinary form they are secured to the grate or to the dead-plates; and said hanger (N0 model.)

E is made in two sections, 0 c, which are secured together at d by rivets or bolts, and one of these sections is provided witha forked end, d, to allow the passage of the arm F, which projects from the shaker out beyond the furnace-front, its end being suitably formed to receive a handle, by means of which an oscil latiug motion can be imparted to the shaker through the medium of the central journals and their supports, whereby the projections b b, 850., on the bars a a, 850., are caused to pass up between the grate-bars B and into the fuel on the grate, which causes the ashes to fall down through the grate. Owing to the large number of projections 79 b, 850., and the even distribution of the ame, the fuel is evenly and thoroughly cleared, whereby a good distribution of air among the fuel is insured.

\Vhat I claim as new, and desire to secure by Letters Patent, is-

The combination, substantially as heretofore described, with the grate A, of the shaker O, which consists of a series of connected bars, a a, &c., each provided with projections b 1), 8w, which extend up between the gratebars, the hanger E, the ends of which are secured to the grate, the box or boxes D D, secured to said hanger, and the arm F, which is adapted to receive a handle for actuating the shaker.

In testimony whereof I have hereunto set my hand and seal in the presence of two subscribing witnesses.

FRIEDRIOH MULLER. 

